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a11789301c
conky/linux.c
Brenden Matthews 179902dc3e foo 
git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky@65 7f574dfc-610e-0410-a909-a81674777703
2005-08-06 07:13:09 +00:00

1068 lines
23 KiB
C
Raw Blame History

/* linux.c
* Contains linux specific code
*
* $Id$
*/
#include "conky.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/sysinfo.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
// #include <assert.h>
#include <time.h>
#include <proc/procps.h>
#include <proc/readproc.h>
#include "top.h"
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <linux/sockios.h>
#include <net/if.h>
#include <math.h>
static struct sysinfo s_info;
static int show_nice_processes;
void prepare_update()
{
}
static void update_sysinfo()
{
sysinfo(&s_info);
info.uptime = (double) s_info.uptime;
/* there was some problem with these */
#if 0
// info.loadavg[0] = s_info.loads[0] / 100000.0f;
info.loadavg[1] = s_info.loads[1] / 100000.0f;
info.loadavg[2] = s_info.loads[2] / 100000.0f;
gkrelltop_process_find_top_three info.mask |= 1 << INFO_LOADAVG;
#endif
info.procs = s_info.procs;
/* these aren't nice, no cache and should check kernel version for mem_unit */
#if 0
info.memmax = s_info.totalram;
info.mem = s_info.totalram - s_info.freeram;
info.swapmax = s_info.totalswap;
info.swap = s_info.totalswap - s_info.swap;
info.mask |= 1 << INFO_MEM;
#endif
info.mask |= (1 << INFO_UPTIME) | (1 << INFO_PROCS);
}
void update_uptime()
{
/* prefers sysinfo() for uptime, I don't really know which one is better
* (=faster?) */
#ifdef USE_PROC_UPTIME
static int rep;
FILE *fp = open_file("/proc/uptime", &rep);
if (!fp)
return 0;
fscanf(fp, "%lf", &info.uptime);
fclose(fp);
info.mask |= (1 << INFO_UPTIME);
#else
update_sysinfo();
#endif
}
/* these things are also in sysinfo except Buffers:, that's why I'm reading
* them from proc */
static FILE *meminfo_fp;
void update_meminfo()
{
static int rep;
/* unsigned int a; */
char buf[256];
info.mem = info.memmax = info.swap = info.swapmax = info.bufmem =
info.buffers = info.cached = 0;
if (meminfo_fp == NULL)
meminfo_fp = open_file("/proc/meminfo", &rep);
else
fseek(meminfo_fp, 0, SEEK_SET);
if (meminfo_fp == NULL)
return;
while (!feof(meminfo_fp)) {
if (fgets(buf, 255, meminfo_fp) == NULL)
break;
if (strncmp(buf, "MemTotal:", 9) == 0) {
sscanf(buf, "%*s %u", &info.memmax);
} else if (strncmp(buf, "MemFree:", 8) == 0) {
sscanf(buf, "%*s %u", &info.mem);
} else if (strncmp(buf, "SwapTotal:", 10) == 0) {
sscanf(buf, "%*s %u", &info.swapmax);
} else if (strncmp(buf, "SwapFree:", 9) == 0) {
sscanf(buf, "%*s %u", &info.swap);
} else if (strncmp(buf, "Buffers:", 8) == 0) {
sscanf(buf, "%*s %u", &info.buffers);
} else if (strncmp(buf, "Cached:", 7) == 0) {
sscanf(buf, "%*s %u", &info.cached);
}
}
info.mem = info.memmax - info.mem;
info.swap = info.swapmax - info.swap;
info.bufmem = info.cached + info.buffers;
info.mask |= (1 << INFO_MEM) | (1 << INFO_BUFFERS);
}
static FILE *net_dev_fp;
static FILE *net_wireless_fp;
inline void update_net_stats()
{
static int rep;
// FIXME: arbitrary size chosen to keep code simple.
int i, i2;
unsigned int curtmp1, curtmp2;
unsigned int k;
struct ifconf conf;
char buf[256];
double delta;
/* get delta */
delta = current_update_time - last_update_time;
if (delta <= 0.0001)
return;
/* open file and ignore first two lines */
if (net_dev_fp == NULL)
net_dev_fp = open_file("/proc/net/dev", &rep);
else
fseek(net_dev_fp, 0, SEEK_SET);
if (!net_dev_fp)
return;
fgets(buf, 255, net_dev_fp); /* garbage */
fgets(buf, 255, net_dev_fp); /* garbage (field names) */
/* read each interface */
for (i2 = 0; i2 < 16; i2++) {
struct net_stat *ns;
char *s, *p;
long long r, t, last_recv, last_trans;
if (fgets(buf, 255, net_dev_fp) == NULL)
break;
p = buf;
while (isspace((int) *p))
p++;
s = p;
while (*p && *p != ':')
p++;
if (*p == '\0')
continue;
*p = '\0';
p++;
ns = get_net_stat(s);
ns->up = 1;
last_recv = ns->recv;
last_trans = ns->trans;
sscanf(p,
/* bytes packets errs drop fifo frame compressed multicast|bytes ... */
"%Ld %*d %*d %*d %*d %*d %*d %*d %Ld",
&r, &t);
/* if recv or trans is less than last time, an overflow happened */
if (r < ns->last_read_recv)
ns->recv +=
((long long) 4294967295U -
ns->last_read_recv) + r;
else
ns->recv += (r - ns->last_read_recv);
ns->last_read_recv = r;
if (t < ns->last_read_trans)
ns->trans +=
((long long) 4294967295U -
ns->last_read_trans) + t;
else
ns->trans += (t - ns->last_read_trans);
ns->last_read_trans = t;
/*** ip addr patch ***/
i = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
conf.ifc_buf = malloc(sizeof(struct ifreq) * 16);
conf.ifc_len = sizeof(struct ifreq) * 16;
ioctl((long) i, SIOCGIFCONF, &conf);
for (k = 0; k < conf.ifc_len / sizeof(struct ifreq); k++) {
struct net_stat *ns;
ns = get_net_stat(((struct ifreq *) conf.
ifc_buf)[k].ifr_ifrn.ifrn_name);
ns->addr =
((struct ifreq *) conf.ifc_buf)[k].ifr_ifru.
ifru_addr;
}
close((long) i);
free(conf.ifc_buf);
/*** end ip addr patch ***/
/* calculate speeds */
ns->net_rec[0] = (ns->recv - last_recv) / delta;
ns->net_trans[0] = (ns->trans - last_trans) / delta;
curtmp1 = 0;
curtmp2 = 0;
// get an average
for (i = 0; (unsigned) i < info.net_avg_samples; i++) {
curtmp1 += ns->net_rec[i];
curtmp2 += ns->net_trans[i];
}
ns->recv_speed = curtmp1 / (double) info.net_avg_samples;
ns->trans_speed = curtmp2 / (double) info.net_avg_samples;
if (info.net_avg_samples > 1) {
for (i = info.net_avg_samples; i > 1; i--) {
ns->net_rec[i - 1] = ns->net_rec[i - 2];
ns->net_trans[i - 1] =
ns->net_trans[i - 2];
}
}
}
/* fclose(net_dev_fp); net_dev_fp = NULL; */
}
inline void update_wifi_stats()
{
/** wireless stats patch by Bobby Beckmann **/
static int rep;
int i;
char buf[256];
/*open file and ignore first two lines sorry, this code sucks ass right now, i'll clean it up later */
if (net_wireless_fp == NULL)
net_wireless_fp = open_file("/proc/net/wireless", &rep);
else
fseek(net_wireless_fp, 0, SEEK_SET);
if (!net_wireless_fp)
return;
fgets(buf, 255, net_wireless_fp); /* garbage */
fgets(buf, 255, net_wireless_fp); /* garbage (field names) */
/* read each interface */
for (i = 0; i < 16; i++) {
struct net_stat *ns;
char *s, *p;
int l, m, n;
if (fgets(buf, 255, net_wireless_fp) == NULL)
break;
p = buf;
while (isspace((int) *p))
p++;
s = p;
while (*p && *p != ':')
p++;
if (*p == '\0')
continue;
*p = '\0';
p++;
ns = get_net_stat(s);
sscanf(p, "%*d %d. %d. %d", &l, &m, &n);
ns->linkstatus = (int) (log(l) / log(92) * 100);
}
/*** end wireless patch ***/
}
int result;
void update_total_processes()
{
update_sysinfo();
}
static unsigned int cpu_user, cpu_system, cpu_nice;
static double last_cpu_sum;
static int clock_ticks;
static FILE *stat_fp;
inline static void update_stat()
{
// FIXME: arbitrary size?
static double cpu_val[15];
static int rep;
char buf[256];
unsigned int i;
double curtmp;
if (stat_fp == NULL)
stat_fp = open_file("/proc/stat", &rep);
else
fseek(stat_fp, 0, SEEK_SET);
if (stat_fp == NULL)
return;
info.cpu_count = 0;
while (!feof(stat_fp)) {
if (fgets(buf, 255, stat_fp) == NULL)
break;
if (strncmp(buf, "procs_running ", 14) == 0) {
sscanf(buf, "%*s %d", &info.run_procs);
info.mask |= (1 << INFO_RUN_PROCS);
} else if (strncmp(buf, "cpu ", 4) == 0) {
sscanf(buf, "%*s %u %u %u", &cpu_user, &cpu_nice,
&cpu_system);
info.mask |= (1 << INFO_CPU);
} else if (strncmp(buf, "cpu", 3) == 0 && isdigit(buf[3])) {
info.cpu_count++;
}
}
{
double delta;
delta = current_update_time - last_update_time;
if (delta <= 0.001)
return;
if (clock_ticks == 0)
clock_ticks = sysconf(_SC_CLK_TCK);
curtmp = 0;
cpu_val[0] =
(cpu_user + cpu_nice + cpu_system -
last_cpu_sum) / delta / (double) clock_ticks /
info.cpu_count;
for (i = 0; i < info.cpu_avg_samples; i++)
curtmp += cpu_val[i];
info.cpu_usage = curtmp / info.cpu_avg_samples;
last_cpu_sum = cpu_user + cpu_nice + cpu_system;
for (i = info.cpu_avg_samples; i > 1; i--)
cpu_val[i - 1] = cpu_val[i - 2];
}
// test code
// this is for getting proc shit
// pee pee
// poo
//
}
void update_running_processes()
{
update_stat();
}
void update_cpu_usage()
{
update_stat();
}
void update_load_average()
{
#ifdef HAVE_GETLOADAVG
double v[3];
getloadavg(v, 3);
info.loadavg[0] = (float) v[0];
info.loadavg[1] = (float) v[1];
info.loadavg[2] = (float) v[2];
#else
static int rep;
FILE *fp;
fp = open_file("/proc/loadavg", &rep);
if (!fp) {
v[0] = v[1] = v[2] = 0.0;
return;
}
fscanf(fp, "%f %f %f", &info.loadavg[0], &info.loadavg[1],
&info.loadavg[2]);
fclose(fp);
#endif
}
static int no_dots(const struct dirent *d)
{
if (d->d_name[0] == '.')
return 0;
return 1;
}
static int
get_first_file_in_a_directory(const char *dir, char *s, int *rep)
{
struct dirent **namelist;
int i, n;
n = scandir(dir, &namelist, no_dots, alphasort);
if (n < 0) {
if (!rep || !*rep) {
ERR("scandir for %s: %s", dir, strerror(errno));
if (rep)
*rep = 1;
}
return 0;
} else {
if (n == 0)
return 0;
strncpy(s, namelist[0]->d_name, 255);
s[255] = '\0';
for (i = 0; i < n; i++)
free(namelist[i]);
free(namelist);
return 1;
}
}
#define I2C_DIR "/sys/bus/i2c/devices/"
int
open_i2c_sensor(const char *dev, const char *type, int n, int *div,
char *devtype)
{
char path[256];
char buf[64];
int fd;
int divfd;
/* if i2c device is NULL or *, get first */
if (dev == NULL || strcmp(dev, "*") == 0) {
static int rep;
if (!get_first_file_in_a_directory(I2C_DIR, buf, &rep))
return -1;
dev = buf;
}
/* change vol to in */
if (strcmp(type, "vol") == 0)
type = "in";
if (strcmp(type, "tempf") == 0) {
snprintf(path, 255, I2C_DIR "%s/%s%d_input", dev, "temp",
n);
} else {
snprintf(path, 255, I2C_DIR "%s/%s%d_input", dev, type, n);
}
strcpy(devtype, path);
/* open file */
fd = open(path, O_RDONLY);
if (fd < 0) {
CRIT_ERR("can't open '%s': %s\nplease fix i2c or remove it from Conky", path, strerror(errno));
}
if (strcmp(type, "in") == 0 || strcmp(type, "temp") == 0
|| strcmp(type, "tempf") == 0)
*div = 1;
else
*div = 0;
/* fan does not use *_div as a read divisor */
if (strcmp("fan", type) == 0)
return fd;
/* test if *_div file exist, open it and use it as divisor */
if (strcmp(type, "tempf") == 0) {
snprintf(path, 255, I2C_DIR "%s/%s%d_div", "one", "two",
n);
} else {
snprintf(path, 255, I2C_DIR "%s/%s%d_div", dev, type, n);
}
divfd = open(path, O_RDONLY);
if (divfd > 0) {
/* read integer */
char divbuf[64];
unsigned int divn;
divn = read(divfd, divbuf, 63);
/* should read until n == 0 but I doubt that kernel will give these
* in multiple pieces. :) */
divbuf[divn] = '\0';
*div = atoi(divbuf);
}
close(divfd);
return fd;
}
double get_i2c_info(int *fd, int div, char *devtype, char *type)
{
int val = 0;
if (*fd <= 0)
return 0;
lseek(*fd, 0, SEEK_SET);
/* read integer */
{
char buf[64];
unsigned int n;
n = read(*fd, buf, 63);
/* should read until n == 0 but I doubt that kernel will give these
* in multiple pieces. :) */
buf[n] = '\0';
val = atoi(buf);
}
close(*fd);
/* open file */
*fd = open(devtype, O_RDONLY);
if (*fd < 0)
ERR("can't open '%s': %s", devtype, strerror(errno));
/* My dirty hack for computing CPU value
* Filedil, from forums.gentoo.org
*/
/* if (strstr(devtype, "temp1_input") != NULL)
return -15.096+1.4893*(val / 1000.0); */
/* divide voltage and temperature by 1000 */
/* or if any other divisor is given, use that */
if (strcmp(type, "tempf") == 0) {
if (div > 1)
return ((val / div + 40) * 9.0 / 5) - 40;
else if (div)
return ((val / 1000.0 + 40) * 9.0 / 5) - 40;
else
return ((val + 40) * 9.0 / 5) - 40;
} else {
if (div > 1)
return val / div;
else if (div)
return val / 1000.0;
else
return val;
}
}
#define ADT746X_FAN "/sys/devices/temperatures/cpu_fan_speed"
static char *adt746x_fan_state;
char *get_adt746x_fan()
{
static int rep;
FILE *fp;
if (adt746x_fan_state == NULL) {
adt746x_fan_state = (char *) malloc(100);
assert(adt746x_fan_state != NULL);
}
fp = open_file(ADT746X_FAN, &rep);
if (!fp) {
strcpy(adt746x_fan_state,
"No fan found! Hey, you don't have one?");
return adt746x_fan_state;
}
fscanf(fp, "%s", adt746x_fan_state);
fclose(fp);
return adt746x_fan_state;
}
#define ADT746X_CPU "/sys/devices/temperatures/cpu_temperature"
static char *adt746x_cpu_state;
char *get_adt746x_cpu()
{
static int rep;
FILE *fp;
if (adt746x_cpu_state == NULL) {
adt746x_cpu_state = (char *) malloc(100);
assert(adt746x_cpu_state != NULL);
}
fp = open_file(ADT746X_CPU, &rep);
fscanf(fp, "%2s", adt746x_cpu_state);
fclose(fp);
return adt746x_cpu_state;
}
/* Thanks to "Walt Nelson" <wnelsonjr@comcast.net> */
/***********************************************************************/
/*
* This file is part of x86info.
* (C) 2001 Dave Jones.
*
* Licensed under the terms of the GNU GPL License version 2.
*
* Estimate CPU MHz routine by Andrea Arcangeli <andrea@suse.de>
* Small changes by David Sterba <sterd9am@ss1000.ms.mff.cuni.cz>
*
*/
#if defined(__i386) || defined(__x86_64)
__inline__ unsigned long long int rdtsc()
{
unsigned long long int x;
__asm__ volatile (".byte 0x0f, 0x31":"=A" (x));
return x;
}
static char *buffer = NULL;
#else
static char *frequency;
#endif
char *get_freq()
{
#if defined(__i386) || defined(__x86_64)
if (buffer == NULL)
buffer = malloc(64);
struct timezone tz;
struct timeval tvstart, tvstop;
unsigned long long cycles[2]; /* gotta be 64 bit */
unsigned int microseconds; /* total time taken */
memset(&tz, 0, sizeof(tz));
/* get this function in cached memory */
gettimeofday(&tvstart, &tz);
cycles[0] = rdtsc();
gettimeofday(&tvstart, &tz);
/* we don't trust that this is any specific length of time */
usleep(100);
cycles[1] = rdtsc();
gettimeofday(&tvstop, &tz);
microseconds = ((tvstop.tv_sec - tvstart.tv_sec) * 1000000) +
(tvstop.tv_usec - tvstart.tv_usec);
sprintf(buffer, "%lldMHz", (cycles[1] - cycles[0]) / microseconds);
return buffer;
#else
FILE *f;
char s[1000];
if (frequency == NULL) {
frequency = (char *) malloc(100);
assert(frequency != NULL);
}
//char frequency[10];
f = fopen("/proc/cpuinfo", "r"); //open the CPU information file
//if (!f)
// return;
while (fgets(s, 1000, f) != NULL) //read the file
if (strncmp(s, "cpu M", 5) == 0) { //and search for the cpu mhz
//printf("%s", strchr(s, ':')+2);
strcpy(frequency, strchr(s, ':') + 2); //copy just the number
frequency[strlen(frequency) - 1] = '\0'; // strip \n
break;
}
fclose(f);
return frequency;
#endif
}
#define ACPI_FAN_DIR "/proc/acpi/fan/"
static char *acpi_fan_state;
char *get_acpi_fan()
{
static int rep;
char buf[256];
char buf2[256];
FILE *fp;
if (acpi_fan_state == NULL) {
acpi_fan_state = (char *) malloc(100);
assert(acpi_fan_state != NULL);
}
/* yeah, slow... :/ */
if (!get_first_file_in_a_directory(ACPI_FAN_DIR, buf, &rep))
return "no fans?";
snprintf(buf2, 256, "%s%s/state", ACPI_FAN_DIR, buf);
fp = open_file(buf2, &rep);
if (!fp) {
strcpy(acpi_fan_state, "can't open fan's state file");
return acpi_fan_state;
}
fscanf(fp, "%*s %99s", acpi_fan_state);
return acpi_fan_state;
}
#define ACPI_AC_ADAPTER_DIR "/proc/acpi/ac_adapter/"
static char *acpi_ac_adapter_state;
char *get_acpi_ac_adapter()
{
static int rep;
char buf[256];
char buf2[256];
FILE *fp;
if (acpi_ac_adapter_state == NULL) {
acpi_ac_adapter_state = (char *) malloc(100);
assert(acpi_ac_adapter_state != NULL);
}
/* yeah, slow... :/ */
if (!get_first_file_in_a_directory(ACPI_AC_ADAPTER_DIR, buf, &rep))
return "no ac_adapters?";
snprintf(buf2, 256, "%s%s/state", ACPI_AC_ADAPTER_DIR, buf);
fp = open_file(buf2, &rep);
if (!fp) {
strcpy(acpi_ac_adapter_state,
"No ac adapter found.... where is it?");
return acpi_ac_adapter_state;
}
fscanf(fp, "%*s %99s", acpi_ac_adapter_state);
fclose(fp);
return acpi_ac_adapter_state;
}
/*
/proc/acpi/thermal_zone/THRM/cooling_mode
cooling mode: active
/proc/acpi/thermal_zone/THRM/polling_frequency
<polling disabled>
/proc/acpi/thermal_zone/THRM/state
state: ok
/proc/acpi/thermal_zone/THRM/temperature
temperature: 45 C
/proc/acpi/thermal_zone/THRM/trip_points
critical (S5): 73 C
passive: 73 C: tc1=4 tc2=3 tsp=40 devices=0xcdf6e6c0
*/
#define ACPI_THERMAL_DIR "/proc/acpi/thermal_zone/"
#define ACPI_THERMAL_FORMAT "/proc/acpi/thermal_zone/%s/temperature"
int open_acpi_temperature(const char *name)
{
char path[256];
char buf[64];
int fd;
if (name == NULL || strcmp(name, "*") == 0) {
static int rep;
if (!get_first_file_in_a_directory
(ACPI_THERMAL_DIR, buf, &rep))
return -1;
name = buf;
}
snprintf(path, 255, ACPI_THERMAL_FORMAT, name);
fd = open(path, O_RDONLY);
if (fd < 0)
ERR("can't open '%s': %s", path, strerror(errno));
return fd;
}
static double last_acpi_temp;
static double last_acpi_temp_time;
double get_acpi_temperature(int fd)
{
if (fd <= 0)
return 0;
/* don't update acpi temperature too often */
if (current_update_time - last_acpi_temp_time < 11.32) {
return last_acpi_temp;
}
last_acpi_temp_time = current_update_time;
/* seek to beginning */
lseek(fd, 0, SEEK_SET);
/* read */
{
char buf[256];
int n;
n = read(fd, buf, 255);
if (n < 0)
ERR("can't read fd %d: %s", fd, strerror(errno));
else {
buf[n] = '\0';
sscanf(buf, "temperature: %lf", &last_acpi_temp);
}
}
return last_acpi_temp;
}
/*
hipo@lepakko hipo $ cat /proc/acpi/battery/BAT1/info
present: yes
design capacity: 4400 mAh
last full capacity: 4064 mAh
battery technology: rechargeable
design voltage: 14800 mV
design capacity warning: 300 mAh
design capacity low: 200 mAh
capacity granularity 1: 32 mAh
capacity granularity 2: 32 mAh
model number: 02KT
serial number: 16922
battery type: LION
OEM info: SANYO
*/
/*
hipo@lepakko conky $ cat /proc/acpi/battery/BAT1/state
present: yes
capacity state: ok
charging state: unknown
present rate: 0 mA
remaining capacity: 4064 mAh
present voltage: 16608 mV
*/
/*
2213<@jupet<65>kellari<72><69>> jupet@lagi-unstable:~$ cat /proc/apm
2213<@jupet<65>kellari<72><69>> 1.16 1.2 0x03 0x01 0xff 0x10 -1% -1 ?
2213<@jupet<65>kellari<72><69>> (-1 ollee ei akkua kiinni, koska akku on p<>yd<79>ll<6C>)
2214<@jupet<65>kellari<72><69>> jupet@lagi-unstable:~$ cat /proc/apm
2214<@jupet<65>kellari<72><69>> 1.16 1.2 0x03 0x01 0x03 0x09 98% -1 ?
2238<@jupet<65>kellari<72><69>> 1.16 1.2 0x03 0x00 0x00 0x01 100% -1 ? ilman verkkovirtaa
2239<@jupet<65>kellari<72><69>> 1.16 1.2 0x03 0x01 0x00 0x01 99% -1 ? verkkovirralla
2240<@jupet<65>kellari<72><69>> 1.16 1.2 0x03 0x01 0x03 0x09 100% -1 ? verkkovirralla ja monitori p<><70>ll<6C>
2241<@jupet<65>kellari<72><69>> 1.16 1.2 0x03 0x00 0x00 0x01 99% -1 ? monitori p<><70>ll<6C> mutta ilman verkkovirtaa
*/
#define ACPI_BATTERY_BASE_PATH "/proc/acpi/battery"
#define APM_PATH "/proc/apm"
static FILE *acpi_bat_fp;
static FILE *apm_bat_fp;
static int acpi_last_full;
static char last_battery_str[64];
static double last_battery_time;
void get_battery_stuff(char *buf, unsigned int n, const char *bat)
{
static int rep, rep2;
char acpi_path[128];
snprintf(acpi_path, 127, ACPI_BATTERY_BASE_PATH "/%s/state", bat);
/* don't update battery too often */
if (current_update_time - last_battery_time < 29.5) {
snprintf(buf, n, "%s", last_battery_str);
return;
}
last_battery_time = current_update_time;
/* first try ACPI */
if (acpi_bat_fp == NULL && apm_bat_fp == NULL)
acpi_bat_fp = open_file(acpi_path, &rep);
if (acpi_bat_fp != NULL) {
int present_rate = -1;
int remaining_capacity = -1;
char charging_state[64];
/* read last full capacity if it's zero */
if (acpi_last_full == 0) {
static int rep;
char path[128];
FILE *fp;
snprintf(path, 127,
ACPI_BATTERY_BASE_PATH "/%s/info", bat);
fp = open_file(path, &rep);
if (fp != NULL) {
while (!feof(fp)) {
char b[256];
if (fgets(b, 256, fp) == NULL)
break;
if (sscanf
(b, "last full capacity: %d",
&acpi_last_full) != 0)
break;
}
fclose(fp);
}
}
fseek(acpi_bat_fp, 0, SEEK_SET);
strcpy(charging_state, "unknown");
while (!feof(acpi_bat_fp)) {
char buf[256];
if (fgets(buf, 256, acpi_bat_fp) == NULL)
break;
/* let's just hope units are ok */
if (buf[0] == 'c')
sscanf(buf, "charging state: %63s",
charging_state);
else if (buf[0] == 'p')
sscanf(buf, "present rate: %d",
&present_rate);
else if (buf[0] == 'r')
sscanf(buf, "remaining capacity: %d",
&remaining_capacity);
}
/* charging */
if (strcmp(charging_state, "charging") == 0) {
if (acpi_last_full != 0 && present_rate > 0) {
strcpy(last_battery_str, "charging ");
format_seconds(last_battery_str + 9,
63 - 9,
(acpi_last_full -
remaining_capacity) * 60 *
60 / present_rate);
} else if (acpi_last_full != 0
&& present_rate <= 0) {
sprintf(last_battery_str, "charging %d%%",
remaining_capacity * 100 /
acpi_last_full);
} else {
strcpy(last_battery_str, "charging");
}
}
/* discharging */
else if (strcmp(charging_state, "discharging") == 0) {
if (present_rate > 0)
format_seconds(last_battery_str, 63,
(remaining_capacity * 60 *
60) / present_rate);
else
sprintf(last_battery_str,
"discharging %d%%",
remaining_capacity * 100 /
acpi_last_full);
}
/* charged */
/* thanks to Lukas Zapletal <lzap@seznam.cz> */
else if (strcmp(charging_state, "charged") == 0) {
if (acpi_last_full != 0
&& remaining_capacity != acpi_last_full)
sprintf(last_battery_str, "charged %d%%",
remaining_capacity * 100 /
acpi_last_full);
else
strcpy(last_battery_str, "charged");
}
/* unknown, probably full / AC */
else {
if (acpi_last_full != 0
&& remaining_capacity != acpi_last_full)
sprintf(last_battery_str, "unknown %d%%",
remaining_capacity * 100 /
acpi_last_full);
else
strcpy(last_battery_str, "AC");
}
} else {
/* APM */
if (apm_bat_fp == NULL)
apm_bat_fp = open_file(APM_PATH, &rep2);
if (apm_bat_fp != NULL) {
int ac, status, flag, life;
fscanf(apm_bat_fp,
"%*s %*s %*x %x %x %x %d%%",
&ac, &status, &flag, &life);
if (life == -1) {
/* could check now that there is ac */
snprintf(last_battery_str, 64, "AC");
} else if (ac && life != 100) { /* could check that status==3 here? */
snprintf(last_battery_str, 64,
"charging %d%%", life);
} else {
snprintf(last_battery_str, 64, "%d%%",
life);
}
/* it seemed to buffer it so file must be closed (or could use syscalls
* directly but I don't feel like coding it now) */
fclose(apm_bat_fp);
apm_bat_fp = NULL;
}
}
snprintf(buf, n, "%s", last_battery_str);
}
void update_top()
{
show_nice_processes = 1;
process_find_top(info.cpu, info.memu);
}
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